Permian orachiopods from central Oregon
By: by G. Arthur Cooper
Series: Smithsonian miscellaneous collections -- vol. 134, no. 12, publication 4302, 1957; Smithsonian miscellaneous collections -- v. 134, no. 12; Publication (Smithsonian Institution) -- 4302, 1957
Publisher: Smithsonian Institution
Published: 1957
Place of publication: Washington [D.C.]
Language: eng
Number of pages: 79
Notes: At head of title: "Charles D. and Mary Vaux Walcott Research Fund".

References: p. 68-70.